typo.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@182660 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/include/clang-c/CXString.h b/include/clang-c/CXString.h
index 34cab5e..592c4dc 100644
--- a/include/clang-c/CXString.h
+++ b/include/clang-c/CXString.h
@@ -46,7 +46,7 @@
 CINDEX_LINKAGE const char *clang_getCString(CXString string);
 
 /**
- * \brief Free the given string,
+ * \brief Free the given string.
  */
 CINDEX_LINKAGE void clang_disposeString(CXString string);